Description: This project is a C# Windows Forms application that interacts with a RESTful API to perform CRUD operations on a collection of books. It uses RestSharp for making API requests and includes token-based authentication, form validation, and response handling.

API Endpoints GET /books – Retrieve all books. GET /books/{id} – Get a book by ID. POST /books – Add a new book. PUT /books/{id} – Update a book. DELETE /books/{id} – Remove a book.